{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "ransom", "arguments": ["time", "tool", "place", "damage amount", "payment method", "victim", "attack pattern"]}], "input": "Prior to this incident , Thanatos encrypted files on a user ’s PC by hijacking it using a brute force method ."}
{"ransom": [{"time": "NAN", "tool": "Thanatos", "place": "NAN", "damage amount": "NAN", "payment method": "NAN", "victim": ["user", "PC"], "attack pattern": ["encrypted files", "hijacking it using a brute force method"]}]}